Propeller screen guard



FIG. 1 is an aft and right perspective view of the propeller guard screen guard—Single No. 1 showing my new design;

FIG. 2 is a front and left perspective view of the propeller guard screen guard—Single No. 1;

FIG. 3 is a side elevation view of the propeller guard screen guard—Single No. 1 with the opposite side being identical; and,

FIG. 4 is a bottom plan view of the propeller screen guard, the top being substantially identical. 

The ornamental design for a propeller screen guard, as shown and described. 